public function test_allows_checking_attributes()
{
$data = ['lime' => 'tree', 'cherry'];
$dict = Dictionary::make($data);
$this->assertTrue(isset($dict->lime));
$this->assertFalse(isset($dict->nooooppeee));
$this->assertTrue(empty($dict->nogood));
$this->assertFalse(empty($dict->lime));
$this->assertNull($dict->nogood);
$this->assertNull($dict->cherry);
}